Alert archive / Kentucky / Severe Thunderstorm Warnings in 2026

Severe Thunderstorm Warning 241, NWS Louisville, KY

September 18, 2026Bullitt County, Kentucky

NWS Louisville, KY issued this severe thunderstorm warning at Sep 18, 2026, 4:49 PM EDT for Bullitt County, Kentucky. It was in force for 26 min. No storm report in the archive falls inside the area while it was in force.

The area

The counties it named.

The facts

Issued
Sep 18, 2026, 4:49 PM EDT (20:49 UTC)
Expired
Sep 18, 2026, 5:15 PM EDT
In force
26 min
Issued by
NWS Louisville, KY
Area
Storm-based polygon
Hail
1.0 in
Wind
60.0 mph

County Bullitt County, KY

The radar

The Louisville radar (KLVX), 22 km from the middle of the area, began a volume at 20:51 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

The nearest sounding before it

Lincoln, IL (KILX), launched 12:00Z, 8.8 hours before the alert went out and 349 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-pSkew-T log-p diagram, Lincoln, IL at 12:00Z on 2026-09-18Temperature and dew point through the depth of the atmosphere, with the mixed-layer parcel. CAPE 637 joules per kilogram.LCLLFCEL10008507005003002001001 km2 km3 km6 km9 km12 km15 km-30°-20°-10°0°10°20°30°40°
Temperature in red, dew point in green, the mixed-layer parcel dashed.
HodographHodograph, Lincoln, IL at 12:00Z on 2026-09-18The wind through the lowest 10 kilometers. Zero to 1 km storm-relative helicity 94 square meters per square second.1939Sfc1 km3 km6 km9 kmRMLM
The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.
Mixed-layer CAPE
637 J/kg
Mixed-layer CIN
-154 J/kg
Mixed-layer LCL
548 m above ground
0-6 km bulk shear
20 kt
0-1 km storm-relative helicity
94 m²/s²
0-3 km storm-relative helicity
136 m²/s²
Significant tornado parameter
0.0
Supercell composite
5.9

Open this sounding in Storm Lab

The office that day

Everything else NWS Louisville, KY issued on the same UTC day.

IssuedProductOfficeCountiesLasted
Sep 18, 2:56 PM EDTSpecial Weather StatementLMKMadison34 min
Sep 18, 3:24 PM EDTSpecial Weather StatementLMKJefferson51 min
Sep 18, 4:27 PM EDTAreal Flood AdvisoryLMKBullitt, Jefferson2 hr
Sep 18, 4:42 PM EDTSpecial Weather StatementLMKBullitt48 min
Sep 18, 7:33 PM EDTSpecial Weather StatementLMKOldham42 min
Sep 18, 7:52 PM EDTSpecial Weather StatementLMKShelby38 min
Sep 18, 7:56 PM EDTHeat AdvisoryLMKAllen, Barren, Breckinridge, Butler, Edmonson, Grayson and 11 more48 hr
Sep 18, 4:11 PM EDTSpecial Weather StatementLMKHarrison49 min
Sep 18, 6:06 PM EDTSpecial Weather StatementLMKScott39 min
Sep 18, 6:07 PM EDTSpecial Weather StatementLMKOrange38 min
Sep 18, 6:40 PM EDTAreal Flood AdvisoryLMKOrange, Washington3 hr
Sep 18, 6:59 PM EDTSpecial Weather StatementLMKCrawford46 min

Nearby

Severe Thunderstorm Warnings in Kentucky, 2026Every severe thunderstorm warning in 2026

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.